Sub-carrier mapping method

The invention discloses a sub-carrier mapping method which comprises: with the set resource block elements as units, physical resource blocks in the frequency band range are rearranged according to a rearrangement sequence so as to be mapped into logical resource blocks; the mapped logical resource blocks in the frequency band range are grouped by a base station, each grouped logical resource block respectively corresponds to one sector, and the superframe control information sent by each sector carries a logical resource block group number which corresponds to the sector; and in each sector of the base station, the resources in the logical resource block group are divided into a centralized mapping resource group and a distributed mapping resource group according to the set proportion, wherein continuous sub-carriers in each resource block unit in the centralized mapping resource group are directly mapped to each resource allocation unit, and after being rearranged through a permutation matrix, all sub-carriers in the distributed mapping resource group are sequentially mapped to each resource allocation unit. The technical scheme of the invention can ensure that users who move quickly and slowly can obtain high throughput.